Series switch



July 15, 1930. J. VALERIUS SERIES SWITCH Filed iob. 10, 1927 Patented July 15, 1930 UNITED STATES PATENT OFFICE 10mm vamaros, or xmrmomuz, nma nnr'ssa, GERMANY seams swn'on:

Application filed February 10, 1987, Serial No. 187

This invention relates to an electric seriesswitch and it consists in connecting all seriescircuits by contact devices, of which each one can be separately operated, to a metal ring 6 which is connected to an interrupter-terminal of the supply circuit and adapted to be in- .serted 'into this supply circuit by means of the switch. When the supply circuit is closed by the switch, every series circuit can be 1 c osed or interrupted independently of the other series-circuits, and all or several seriescircuits can be interrupted simultaneously by the switch.

An embodiment of the invention is illusll trated, by way of example, in the accompanying drawings, in which Fig. 1 shows the switch base in plan view in a section on line 11 of Fig. 2.

Fig. 2 is a vertical section.

Figs. 3 and 4 show each in vertical section a modified construction of a contact terminal and contact bolt.

In the base a two interrupter-contacts e and c are arranged on which the circuit can be closed by a depression of a push-knob d in the cover 6 and carrying a contact disk e. The push-knob d is held in the circuit-closing position by means of a blade spring g engaging with an annular groove 7 of the knobshaft. To release the push-knob d a pressbutton It has to be pushed inward which projects from a bore in the side wall of cover 6 and, when being pushed inward, spreads the blade spring 9 in outward direction so that it releases the groove and the push knob d can jump back into the initial position by the action of a spiral spring. The leading-inwire is connected to the interrupter contact the second contactc being in the base a of the bolts with nuts for or of hollow pins k gs. being in this case passed Every contact terminal k ,283, and in Germany m a1, 1928.

or It serves to connect one series-circuit and opposite each contact terminal a vice is arranged which is permanentl The screw bolts m a contact dere screwed into the metal screw bolt m points towards a contact terminal is and touches the same when it is being screwed in. The screw bolts may be horizontally, or as shown in Fig. 4, vertically directed towards the. contact terminals. Each contact bolt m has a head n of insulating material which projects outwards through a bore in the cover 6 so that it can be operated to close the circuit.

When the head 1!. ing contact bolt m i responding series-oi same contact bolt sponding series-circuit however, the push knob 03 cutting-out position, the

corresponding seriesis turned the corresponds screwed in and the corrcuit is closed; when the is unscrewed the correis interrupted. When, is brought into the electric connection between the supply circuit and the metal ring 5 or circuits are cut-out.

Instead of a of known type may the supply handle of kn screw bolts these contact in or out, are ter case the contact and the insulating bolts,

push knob any 2" is interrupted and all the seriesswitch handle be used or interrupting circuit, for instance a rotary switch own type. m might be arranged so that The heads n of the instead of being screwed pushed in and out. In the latbolts m are smooth pins heads 12 are pushed outwards by the action of springs and they are secured in the switching-1n of a bayonet joint, so ly turned after having been claim position by means that they must be slightpushed in.

1. An electric switch comprising in combination with the cut out for the feed wire and feed wire and with a current distributing ring connected to. said a number of contact devices for tapping individual circuits rom the distributor ring,

said contact devices consisting of:connecting terminals perpendicularly fixed in the b ase plate of said switch,

of screw pins in an upper portion of said switch traversing said distributor ring at right angles to the bolts of the connecting terminals, and a handle on each of said screw pins projecting from the rim of said upper part of said switch so that said screw pins can be adjusted with regard to said bolts of said connecting terminals.

2. An electric switch comprising in combination with the cut out for the feed wire and a current distributing ring connected to said feed wire and with a number of contact devices for tapping individual circuits from the distributor ring, said contact devices consisting of connecting terminals perpendicularly fixed in the base plate of said switch, of screw pins in an upper portion of said switch traversing said distributor ring at right angles to the bolts of the connecting terminals, and a handle on each of said screw pins projecting from the rim of said upper part 0 said switch so that said screw pins can be adjusted axially with regard to said bolts of said connecting terminals.

3. An electric switch comprising in combination with the cut out for the feed wire and a current distributing ring connected to said feed wire and with a number of contact devices for tapping individual circuits from the distributor ring, said contact devices consisting of connecting terminals perpendicularly fixed in the base plate of said switch, of screw pins in an upper portion of said switch traversing said distributor ring at right angles to the bolts of the connecting terminals, and a handle on each of said screw pins projecting from the rim of said upper part of said switch so that said scrpins can be adjusted, said contact devices consisting of connecting terminals beside said distributor ring, and of screw pins with handle traversing said distributor ring and adapted to be adjusted with regard to said connecting terminal, a resilient push button for connecting said terminals for the feedin of currents to said distributor ring, said push button having a circular groove in its stem, an oval spreading spring arranged underneath said push button and engaging with said groove of the push button stern, and a handle on said spreading s ring projecting from the switch case and adapted to spread said spring when being pressed in and to release said push button.

In testimony whereof I aflix m signature.

JOHANN V BIUS. 

